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Finding the Fourth Proportional to 427,558.29, 590,005.78 and 236,560.29

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Solution

The fourth proportional to 427,558.29, 590,005.78 and 236,560.29 is: 326,439.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,558.29 : 590,005.78 = 236,560.29 : x
  2. Step 2: Convert to fraction form
    427,558.29/590,005.78 = 236,560.29/x
  3. Step 3: Cross multiply
    427,558.29x = 590,005.78 × 236,560.29
  4. Step 4: Simplify right side
    427,558.29x = 139,571,938,418.48
  5. Step 5: Solve for x
    x = 139,571,938,418.48/427,558.29
  6. Step 6: Final answer
    x = 326,439.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.